Copyright & Licenses
Definition of Copyright
a collection of rights granted to the author of a piece of work (book, song, video, etc.).
Public Domain
expired copyright, the work was created using public money, the creator donated the work into public domain.
Freeware
is a copyright work that you can copy, use, or give away for free.
Shareware
copyrighted work that you can copy, share, and use for free, but only for a limited time; if you want the full/permanent program, you must pay for it.
All Rights Reserved
only allows purchaser to use the software according to the details in the license agreement.
Open Source
denoting software for which the original source code is made freely available and may be redistributed and modified.